The general problem concerns the use of rain water for w.c flushing. In the
past there has been no financial incentive for U.K. customers to conserve water
because charges were not based upon the volume used. During the next: decade the
me tering of domestic supplies is to be introduced and water conse rvation devices
are likely to become financially viable. The integ ration of rain water w.c. flushing
cisterns into U.K. dwellings and their economic feasibility is evaluated. Finally
the reactions of water suppliers, housebuilders and consumers in the U.K. t his
method of water conservation are presented and discussed.